Convert Joules (J) to Foot Pounds (ft·lb)

1 joule equals 0.737562 foot pounds.

Formula: ft·lb = J × 0.737562

Joule to Foot Pound Converter

How to Convert Joule to Foot Pound

1 joule = 0.737562 foot pounds

Foot Pound = Joule × 0.737562

Example: 1 J × 0.737562 = 0.737562 ft·lb

Reverse Conversion

To convert foot pounds back to Joules:

Remember, 1 foot pound equals 1.35582 Joules.
To convert 0.737562 ft·lb to J, multiply 0.737562 x 1.35582, resulting in 1 J.

Common Joule to Foot Pound Conversions

Joule to Foot Pound (Part 1)

Joule to Foot Pound common conversions part 1
Joule	Foot Pound	Actions
1 joule	0.737562 foot pounds
5 Joules	3.68781 foot pounds
10 Joules	7.37562 foot pounds
25 Joules	18.4391 foot pounds

Joule to Foot Pound (Part 2)

Joule to Foot Pound common conversions part 2
Joule	Foot Pound	Actions
50 Joules	36.8781 foot pounds
100 Joules	73.7562 foot pounds
500 Joules	368.781 foot pounds
1000 Joules	737.562 foot pounds

Joules to foot pounds Conversion Table

Reference table with common joules to foot pounds conversions. All values calculated with high precision.

Joules to Foot Pounds Table
0.001 to 5

Joules	Foot pounds	Actions
0.001 J	0.000737562 ft·lb
0.0025 J	0.00184391 ft·lb
0.005 J	0.00368781 ft·lb
0.01 J	0.00737562 ft·lb
0.025 J	0.0184391 ft·lb
0.05 J	0.0368781 ft·lb
0.1 J	0.0737562 ft·lb
14 J	0.184391 ft·lb
12 J	0.368781 ft·lb
1 J	0.737562 ft·lb
2 12 J	1.84391 ft·lb
5 J	3.68781 ft·lb

Joules to Foot Pounds Table
10 to 1000000

Joules	Foot pounds	Actions
10 J	7.37562 ft·lb
25 J	18.4391 ft·lb
50 J	36.8781 ft·lb
100 J	73.7562 ft·lb
250 J	184.391 ft·lb
500 J	368.781 ft·lb
1000 J	737.562 ft·lb
2500 J	1843.91 ft·lb
5000 J	3687.81 ft·lb
10000 J	7375.62 ft·lb
25000 J	18439.1 ft·lb
50000 J	36878.1 ft·lb
100000 J	73756.2 ft·lb
250000 J	184391 ft·lb
500000 J	368781 ft·lb
1000000 J	737562 ft·lb

Foot Pounds to Joules Table
0.0001 to 12

Foot pounds	Joules	Actions
0.0001 ft·lb	0.000135582 J
0.00025 ft·lb	0.000338954 J
0.0005 ft·lb	0.000677909 J
0.001 ft·lb	0.00135582 J
0.0025 ft·lb	0.00338954 J
0.005 ft·lb	0.00677909 J
0.01 ft·lb	0.0135582 J
0.025 ft·lb	0.0338954 J
0.05 ft·lb	0.0677909 J
0.1 ft·lb	0.135582 J
14 ft·lb	0.338954 J
12 ft·lb	0.677909 J

Foot Pounds to Joules Table
1 to 100000

Foot pounds	Joules	Actions
1 ft·lb	1.35582 J
2 12 ft·lb	3.38954 J
5 ft·lb	6.77909 J
10 ft·lb	13.5582 J
25 ft·lb	33.8954 J
50 ft·lb	67.7909 J
100 ft·lb	135.582 J
250 ft·lb	338.954 J
500 ft·lb	677.909 J
1000 ft·lb	1355.82 J
2500 ft·lb	3389.54 J
5000 ft·lb	6779.09 J
10000 ft·lb	13558.2 J
25000 ft·lb	33895.4 J
50000 ft·lb	67790.9 J
100000 ft·lb	135582 J

Definition of Joule

Definition: SI unit of energy: 1 J = 1 N·m = 1 kg·m²·s⁻².
Notes: Used universally in physics, chemistry, and engineering.
Sources: BIPM — SI Brochure

About the Joule

Facts & Uses

SI unit of energy: 1 J = 1 N·m = 1 W·s = 1 C·V = 1 Pa·m³; ubiquitous in mechanics, thermodynamics, electromagnetism, and chemistry.
Common engineering scales: kJ, MJ, GJ for fuels, heating/cooling loads, and process energy.
Everyday intuition: lifting ~1 N through 1 m ≈ 1 J; a 10 Wh battery stores ≈ 36,000 J for devices/IoT.
Key links: 1 kWh = 3.6 × 10⁶ J; 1 eV = 1.602176634×10⁻¹⁹ J (exact) via the fixed elementary charge.

Curiosities

Joule heating (I²R) connects electrical losses to thermal energy in conductors and electronics.
Although both use N·m, torque (vector, moment) and energy (scalar, work) are physically distinct.
Compression/expansion work in gases is often expressed as Pa·m³ (= J), linking pressure–volume integrals to energy.
Named for James P. Joule, who quantified the mechanical equivalent of heat, bridging thermal and mechanical domains.

Sources

Frequently Asked Questions

How many foot pounds are in one joule?

One joule equals 0.737562 foot pounds. To convert, multiply the joule value by 0.737562. For the reverse, divide the foot pound value by 0.737562 (or multiply by 1.35582).

What is 100 Joules in foot pounds?

100 Joules = 73.756 foot pounds. This is one of the most commonly searched conversions for this pair.

How precise is the joule-to-foot pound conversion?

The factor 0.737562 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.

Looking for the reverse? Convert Foot Pound to Joule

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Conversion factors verified against NIST, BIPM, ISO 80000-4 1 cal_IT = 4.1868 J by definition (BIPM/ITS-90). Last reviewed: April 2026

By Adilson Fernandes

Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.